I’ll be honest - I liked Julie when she first showed up. She was a decent “everygirl”, and had her own life outside of Ben, which I could appreciate.
But then they proceeded to do exactly zero with her until the very end. Are you telling me they couldn’t have given Ship the ability to make armor for her earlier so she could pull her own weight? Or that she couldn’t have became buddies with Cooper and gotten him to make her some Knockoff-Alien tech? Could she have learned how to read Intergalactic Standard, and served as some sort of translator?
She did absolutely nothing of interest, and had no interesting episodes either. Every time there was a Julie episode, it was always “Ben does something stupid and Julie just has to get over it because that’s just how it is when you date the Hero of the Universe”